Horizontally-mountable paper tray



FIG. 1 is a top, right front perspective view of a horizontally-mountable paper tray showing my new design, the screws depicted by means of broken lines being shown for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a horizontally-mountable paper tray, as shown and described. 